Modeling high-speed reacting flows with variable turbulent Prandtl and Schmidt numbers

Molchanov, A.M.; Bykov, L.V.; Nikitin, P.V.

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dc.contributor.author	Molchanov, A.M.
dc.contributor.author	Bykov, L.V.
dc.contributor.author	Nikitin, P.V.
dc.date.accessioned	2014-12-15T07:34:04Z
dc.date.available	2014-12-15T07:34:04Z
dc.date.issued	2012
dc.description.abstract	Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.	en_ZA
dc.description.abstract	A turbulence model that considers the impact of compressibility effects on turbulence and allows for the calculation of the variable turbulent Prandtl (PrT) and Schmidt (ScT) numbers as part of the solution is presented. The model is based on modeling the slow part of pressure/scalar-gradient correlation depending on characteristic time of scalar variable fluctuations (the ratio of scalar variable variance to its dissipation rate) and on the assumption that the velocity fluctuations directed normal to the streamlines play a key role in turbulent mixing process. For the validation of the code the described numerical procedures are applied to a series of jet flow problems. These include supersonic turbulent jets of variable composition and high-speed chemically reacting coflows.	en_ZA
dc.description.librarian	dc2014	en_ZA
dc.format.extent	7 pages	en_ZA
dc.format.medium	PDF	en_ZA
dc.identifier.citation	Molchanov, AM, Bykov, LV & Nikitin, PV 2012, Modeling high-speed reacting flows with variable turbulent Prandtl and Schmidt numbers, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.	en_ZA
dc.identifier.isbn	9781868549863
dc.identifier.uri	http://hdl.handle.net/2263/42999
dc.language.iso	en	en_ZA
dc.publisher	International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics	en_ZA
dc.relation.ispartof	HEFAT 2012	en_US
dc.rights	University of Pretoria	en_ZA
dc.subject	Turbulence model	en_ZA
dc.subject	Compressibility effects on turbulence	en_ZA
dc.subject	Variable turbulent Prandtl	en_ZA
dc.subject	PrT	en_ZA
dc.subject	Schmidt numbers	en_ZA
dc.subject	ScT	en_ZA
dc.subject	Turbulent mixing process	en_ZA
dc.subject	Supersonic turbulent jets	en_ZA
dc.subject	High-speed chemically reacting coflows	en_ZA
dc.title	Modeling high-speed reacting flows with variable turbulent Prandtl and Schmidt numbers	en_ZA
dc.type	Presentation	en_ZA